WO2017197736A1 - 一种充电方法、充电器及终端 - Google Patents

一种充电方法、充电器及终端 Download PDF

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Publication number
WO2017197736A1
WO2017197736A1 PCT/CN2016/088212 CN2016088212W WO2017197736A1 WO 2017197736 A1 WO2017197736 A1 WO 2017197736A1 CN 2016088212 W CN2016088212 W CN 2016088212W WO 2017197736 A1 WO2017197736 A1 WO 2017197736A1
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WO
WIPO (PCT)
Prior art keywords
terminal
charger
data line
charging
line
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PCT/CN2016/088212
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English (en)
French (fr)
Inventor
龚勇
Original Assignee
中兴通讯股份有限公司
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Publication of WO2017197736A1 publication Critical patent/WO2017197736A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to, but is not limited to, the field of charging technology, and in particular, to a charging method, a charger, and a terminal.
  • the charging chip In the method of increasing the output power by increasing the output voltage, the charging chip is generally converted into a charging voltage that is charged by the charging chip; however, in the process of voltage conversion, the efficiency is low, and the heating of the charging chip makes The output current is limited.
  • the output voltage of the charger is generally raised according to the voltage drop of the line, so that a large current suitable for the voltage can directly charge the battery.
  • This method is more efficient than a charging method that increases the output voltage.
  • the charging process is to transmit current through the USB (Universal Serial Bus) interface VBUS power line.
  • the conventional cable can not be used for charging in the high current mode.
  • the USB interface of the terminal and Charging cables require special customization, which limits the use of this method. Large current transmission increases line loss and reduces charging efficiency.
  • the purpose of the embodiments of the present invention is to provide a charging method, a charger, and a terminal, which can increase charging current under the premise of the same line loss to achieve faster charging, or reduce the high current caused by USB charging under the premise of the same charging current. Line loss.
  • a charging method is applied to a terminal, and the USB interface of the terminal includes: a power line, a positive data line, and a negative data line, and the method includes:
  • the terminal identifies whether the access device inserted into the USB interface of the terminal is a fast charger that matches the same;
  • the terminal connects at least one of the positive data line or the negative data line to the power line;
  • the power supply voltage transmitted to the terminal through the power line and the positive data line and/or the negative data line is converted into a charging voltage of the terminal battery to perform a charging operation for the terminal battery.
  • the terminal identifies whether the access device inserted into the USB interface of the terminal is a fast charger that matches:
  • the terminal When detecting that the access device is inserted into the terminal USB interface, the terminal performs a fast charge identification preparation operation and initiates a charger identification confirmation command to the access device.
  • the terminal When receiving the identification confirmation signal fed back by the access device according to the identification confirmation command, the terminal determines that the access device inserted into the USB interface of the terminal is a fast charger matching the same.
  • the method further includes:
  • the access device When detecting that the access device is a charger, converting a power voltage of the charger transmitted to the terminal in a preset mode to a charging voltage of the terminal battery to charge the terminal battery.
  • the method further includes:
  • the terminal After the terminal connects one of the positive data line or the negative data line to the power line, the terminal uses the positive data line or the negative data line during a charging input operation A data line not connected to the power line transmits charging control information to the quick charger; or
  • the terminal Before the terminal connects the positive data line and the negative data line to the power line, after receiving the identification confirmation signal fed back by the access device, the terminal passes the positive data line and the negative data line Any one of the data lines, or two data lines through the positive data line and the negative data line
  • the charging control information is transmitted to the quick charger.
  • a charging method is applied to a charger, and the USB interface of the charger includes: a power line, a positive data line, and a negative data line, and the method includes:
  • the charger identifies whether the terminal inserted into the USB interface of the charger is a fast charging terminal matched thereto;
  • the charger connects at least one of the positive data line or the negative data line to the power line;
  • a power supply voltage input to the terminal through the power line and the positive data line and/or a negative data line is converted into a charging voltage of the terminal battery to perform a charging operation for the terminal battery.
  • the charger identifies whether the terminal inserted into the USB interface of the charger is a fast charging terminal that matches:
  • the charger performs a quick charge recognition preparation operation when detecting that the terminal is inserted into the charger USB interface.
  • the charger When receiving the charger identification confirmation command sent by the terminal, the charger confirms that the terminal inserted into the USB interface of the charger is a matching terminal, and returns an identification confirmation signal to the terminal.
  • the charger identification confirmation command sent by the terminal is not received within the preset time threshold, it is determined that the terminal inserted into the USB interface of the charger is not a matching fast charging terminal, and the positive data line and the negative data line are negative
  • the data line is connected to a preset mode in which the charger charges a terminal inserted into the charger USB interface in the preset mode.
  • the method further includes: after the charger connects one of the positive data line or the negative data line to the power line, the charger is used during a charging operation a data line of the positive data line or the negative data line not connected to the power line to receive charging control information sent by the terminal; or
  • the charger Before the charger connects the positive data line and the negative data line to the power line, the charger passes through any one of the positive data line and the negative data line, or through the The two data lines of the positive data line and the negative data line receive charging control information transmitted from the terminal.
  • a terminal comprising:
  • the charging management unit is configured to identify whether the access device inserted into the terminal USB interface is a fast charger that matches.
  • control switch configured to: when the charging management unit recognizes that the access device inserted into the terminal USB interface is a fast charger matched thereto, at least one of a positive data line or a negative data line of the terminal USB interface a power cord connected to the USB interface of the terminal;
  • a charge conversion unit configured to pass the power line and the positive data line and/or negative after the control switch connects at least one of the positive data line or the negative data line to the power line
  • the power supply voltage transmitted from the data line to the terminal is converted into the charging voltage of the terminal battery, and the charging operation is performed for the terminal battery.
  • the charging management unit identifies whether the access device inserted into the USB interface of the terminal is a fast charger that matches:
  • the quick charge identification preparation operation includes: controlling the The control switch connects the positive data line and the negative data line to the charge management unit.
  • the charging management unit is further configured to: when the identification confirmation signal fed back by the access device is not received within a preset time threshold, determine that the access device inserted into the USB interface of the terminal does not match a fast charging terminal and detecting whether the access device is a charger;
  • the charging conversion unit is configured to, when detecting that the access device is a charger, convert a power voltage of the charger transmitted to the terminal in a preset mode into a charging voltage of the terminal battery, The terminal battery is charged.
  • the control switch is configured to connect the positive data line and the negative data line to a USB protocol processing chip of the terminal when detecting that the access device is not a charger, so that the terminal performs a USB protocol operation.
  • the charging management unit is further configured to: at the control switch, the positive data line After the one of the negative data lines is connected to the power line, the charging management unit uses the unconnected one of the positive data line or the negative data line during the charging operation performed by the charging conversion unit A data line of the power line transmits charging control information to the quick charger; or
  • the charging management unit Before the control switch connects the positive data line and the negative data line to the power line, after the charging management unit receives the identification confirmation signal fed back by the access device, the charging management unit passes the Any one of the positive data line and the negative data line is described, or the charging control information is transmitted to the fast charger through the two data lines of the positive data line and the negative data line.
  • a charger that includes:
  • the charging management unit is configured to identify whether the terminal inserted into the charger USB interface is a fast charging terminal that matches.
  • control switch configured to connect at least one of the positive data line or the negative data line to the location when the charging management unit recognizes that the terminal inserted into the USB interface of the charger is a matching fast charging terminal The power cord.
  • a power output unit configured to pass the power line and the positive data line and/or negative after the control switch connects at least one of the positive data line or the negative data line to the power line
  • the power supply voltage input to the terminal by the data line is converted into the charging voltage of the terminal battery to perform a charging operation for the terminal battery.
  • the charging management unit identifies whether the terminal inserted into the USB interface of the charger is a fast charging terminal that matches:
  • the charging management unit is further configured to: after the control switch connects one of the positive data line or the negative data line to the power line, the power output unit performs a charging operation
  • the charging management unit further receives charging control information transmitted by the terminal through one of the positive data line or the negative data line that is not connected to the power line.
  • the charging management unit After the control switch connects the positive data line and the negative data line to the power line, after the charging management unit sends the identification confirmation signal to the terminal, the charging management unit passes the positive Any one of the data line and the negative data line, or the two data lines of the positive data line and the negative data line, receive charging control information from the terminal.
  • a computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the charging method.
  • the charging current when the charging current is output to the terminal, in addition to the VBUS line, one or two of the positive data line D+ line or the negative data line D- line may be used, that is, previously passed.
  • the current that the fast charger transmits to the terminal through the VBUS line can now be transmitted at least through one or two of the VBUS line and the D+ line or the D- line, so that the charging current can be increased under the premise of the same line loss. Fast charging, and reduce the line loss caused by large current during USB charging under the same charging current.
  • FIG. 1 is a schematic flow chart of a first embodiment of a charging method according to an embodiment of the present invention
  • FIG. 2 is a schematic flow chart of an embodiment of S101 of FIG. 1;
  • FIG. 3 is a schematic flow chart of a second embodiment of a charging method according to an embodiment of the present invention.
  • FIG. 4 is a schematic flow chart of a third embodiment of a charging method according to an embodiment of the present invention.
  • FIG. 5 is a schematic flow chart of a fourth embodiment of a charging method according to an embodiment of the present invention.
  • FIG. 6 is a schematic flow chart of an embodiment of S501 in FIG. 5;
  • FIG. 7 is a schematic flow chart of a fifth embodiment of a charging method according to an embodiment of the present invention.
  • FIG. 8 is a schematic flow chart of a sixth embodiment of a charging method according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of an embodiment of a terminal according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of an embodiment of a charger according to an embodiment of the present invention.
  • 11 to 16 are schematic diagrams of charging according to an embodiment of the present invention.
  • the process of charging it usually includes two parts of a charger and a terminal.
  • the charger outputs power to the battery of the terminal through the USB cable. Therefore, in the charging process, the charger and the terminal need to cooperate with each other, thereby realizing charging of the terminal.
  • the embodiment of the present invention provides a charging method, a charger, and a terminal. The details will be described below by way of examples.
  • FIG. 1 is a schematic flowchart of a first embodiment of a charging method according to an embodiment of the present invention.
  • the USB interface of the terminal includes: a power line (hereinafter referred to as VBUS line), a positive data line (hereinafter referred to as D+ line), a negative data line (hereinafter referred to as D- line), and a ground line (ie, GND line).
  • the charging method of the embodiment of the present invention includes steps S101-S105:
  • the terminal identifies whether the access device inserted into the USB interface of the terminal is a fast charger that matches.
  • the purpose of identifying the access device inserted into the USB interface of the terminal in S101 is to determine what operation the terminal should perform next. If the access device inserted into the USB interface of the terminal is identified as a fast charger matched with the terminal, The terminal needs to execute S105. If it is recognized that the access device inserted into its USB interface is not a matching fast charger, the terminal performs further detection to determine the next operation.
  • the terminal when the terminal identifies that the access device inserted into the USB interface of the terminal is a fast charger that matches, that is, when performing S101, as shown in FIG. 2, the terminal may include steps S1011-S1012:
  • the charger identification confirmation command initiated by the terminal to the device may be, for example, a voltage pull. High or low recognition command.
  • the terminal After the terminal recognizes that the access device inserted into the USB interface of the terminal is a fast charger that matches the fast charger, that is, when the terminal is adapted to the fast charger, after executing S105, S103 is performed; and the terminal recognizes that the USB interface is inserted.
  • the incoming device is not a matching fast charger
  • the terminal if the terminal does not receive the identification confirmation signal returned by the access device after initiating the charger identification confirmation command to the access device, the terminal considers that the terminal is inserted into the terminal USB interface.
  • the device is not a fast charger that matches it, that is, when the terminal and the quick charger are not adapted, then S102-S104 is executed.
  • the terminal and the quick charger are not successfully adapted.
  • the terminal needs to detect whether the device plugged into the USB interface of the terminal is a conventional charger, such as a charger that conforms to a certain preset mode, such as a charger of the BC1.2 protocol. If the access device is a charger, S103 is performed; if the access device is not a charger, S104 is performed.
  • the charger may be set to a different charging mode, that is, the preset mode in the embodiment of the present invention, which may also be referred to as a regular mode.
  • this step performs a normal charging operation, and any one of the related art charging methods can be used, and after the charging is completed, the charging process ends.
  • the terminal detects that the inserted access device is not a charger, and the terminal needs to connect its D+ line and D- line to the USB protocol processing chip of the terminal to perform USB protocol operation.
  • the terminal connects at least one of the D+ line or the D- line to the VBUS line.
  • the terminal connects one or two of the D+ lines or D- lines on its USB interface to the VBUS line, and accordingly, the fast charger that matches this time also will be D+ on the terminal USB interface.
  • One or both of the lines or D-lines are connected to the VBUS line and are the same as the D+ line or D-line selection of the terminal connected to VBUS.
  • S103 that is, a charging input operation, can be performed between the terminal and the quick charger, and during the execution of S103, one or two of the VBUS line and the D+ line or the D- line can be used for current transmission.
  • the fast charger of the embodiment of the present invention can rely on the VBUS line in addition to the VBUS line, and can also rely on the D+ line or the D- line.
  • One or two that is, the current that was previously transmitted to the terminal through the VBUS line through the fast charger, can now be transmitted at least through one or two of the VBUS line and the D+ line or the D- line, so that it can be on the same line.
  • the terminal uses its terminal VBUS line and D+ line to transmit current
  • the D-line communication mode is changed to the single-line communication mode, and the terminal can use the D-line to transmit the charging control information to the fast.
  • the communication mode of the D+ line is changed to the single line communication mode, and the terminal can use the D+ line to transmit the charging control information to the fast charger.
  • the transmitted charging control information may include, for example, a battery capacity of the terminal, a current condition, and the like.
  • the terminal uses its VBUS line, D+ line and D- line to transmit current
  • the terminal uses its VBUS line, D+ line and D- line to transmit current
  • the terminal can transmit the charging control information to the fast charger in advance.
  • the terminal when the USB interface of the terminal has an access device inserted (S301), the terminal performs a quick charge recognition preparation operation (S302), and initiates a charger identification confirmation command (S303).
  • the terminal detects whether the identification confirmation signal returned by the access device is received (S304).
  • the terminal After receiving the identification confirmation signal returned by the access device, the terminal connects the D+ line to the VBUS line of the insertion terminal, and changes the D-line communication mode. It is a one-line communication method (S305), and the charging input operation is started to charge the battery (S306). And the D-pass charging control information is sent to the charger to determine whether the charging is over (S307). After the end of charging, charging is stopped (S308).
  • the terminal detects whether the access device is not the charger of the BC1.2 protocol (S309).
  • the terminal confirms that the access device is a charger that complies with the BC1.2 protocol, initiates charging conversion, performs a normal charging operation, and charges the battery until the end. After the charging is completed, the charging is ended (S308). If the access device is not a charger of the BC1.2 protocol, the terminal performs a USB protocol operation to switch the D+ line and the D-line to the USB protocol processing chip (S310).
  • the embodiment of the present invention is used.
  • the charging current is 1.4 times when the charging current is only transmitted using the VBUS line; or the charging current can be realized only if each line loss is the same as the VBUS line.
  • the charging current transmitted by the VBUS line is twice.
  • the working process of the terminal in FIG. 4 is substantially the same as the working process of the terminal in FIG. 3.
  • the only difference is that the terminal switches the D+ line and the D- line to the VBUS after receiving the identification confirmation signal.
  • the line that is, the difference between FIG. 3 and FIG. 4 is only S405.
  • FIG. 5 it is a schematic flowchart of a fourth embodiment of a charging method according to an embodiment of the present invention.
  • the USB interface of the charger includes: a power line (hereinafter referred to as VBUS line for short), a positive data line (hereinafter referred to as D+ line for short), a negative data line (hereinafter referred to as D-line for short), and a ground line (ie, GND line). ).
  • the charging method of the embodiment of the present invention includes steps S501-S505:
  • the charger identifies whether the terminal inserted into the charger USB interface is a fast charging terminal that matches.
  • the purpose of the S501 in the charger to identify the device inserted into the USB interface of the charger is to determine how the charger outputs the current; if the terminal inserted into the USB interface is identified as a matching fast charging terminal, the charger S502-S503 is performed; if it is recognized that the device inserted into the charger USB interface is not a matching fast charging terminal, then S504 is performed, S504 corresponds to S102, and the charger is placed in a certain preset mode, such as BC1. 2 protocol mode, in which the terminal is charged until the end.
  • a certain preset mode such as BC1. 2 protocol mode
  • steps S5011-S5012 may be included:
  • the S5011-S5013 echoes the S1011-S1012 and responds through the phase.
  • the terminal and the charger can quickly determine whether they are adapted to each other.
  • S502-S503 is executed; when the charger recognizes that the device inserted into the USB interface of the charger is not When the fast charging terminal is matched, if the charger does not receive the charger identification confirmation command sent by the terminal within the preset time threshold, the charger considers that the terminal is not a matching fast charging terminal, and the charger also When the feedback confirmation signal is not required to be sent to the terminal, that is, when the terminal and the charger are not adapted, then S504 is performed.
  • the charger connects at least one of a positive data line or a negative data line of the USB interface of the charger to the power line.
  • Steps S502-S503 correspond to S105 and S103.
  • the charger recognizes that the terminal inserted into the USB interface of the charger is a matching fast charging terminal, at least one of the D+ line or the D- line of the USB interface of the charger is required. Connect to its VBUS line.
  • the fast charging terminal matched at this time also connects one or two of the D+ line or the D- line on the terminal USB interface to the VBUS line, and the terminal is connected to the D+ line or D- of the VBUS.
  • the line selection is the same.
  • a fast charging operation can be realized between the terminal and the charger, that is, the charger uses its VBUS line, and one or two of the D+ line or the D- line to output a charging current to the terminal;
  • the VBUS line, and one or two of the D+ line or the D- line are used to receive the charging current output by the charger.
  • the charger of the embodiment of the present invention can rely on one of the D+ line or the D- line in addition to the VBUS line when outputting the charging current to the terminal.
  • the charging current is transmitted.
  • the charging current is transmitted using only the VBUS line. 2 times the charge input current; If a VBUS line, and the lines D + and D- lines to transmit the charging current current transmission VBUS line transmission using only 3 times the charging current.
  • the D-line communication mode is changed to the single-line communication mode, and the charger can use the D-line to receive the terminal.
  • Charge control information until the end of charging when the charger uses its VBUS line and D- line to transmit current, during the charging process, the D+ line communication mode is changed to the single line communication mode, and the charger can use the D+ line to receive the terminal.
  • the transmitted charging control information may include, for example, a battery capacity of the terminal, a current condition, and the like.
  • the charger uses its VBUS line, D+ line and D- line to transmit current
  • the D+ line and the D- line are both connected to Before the VBUS line, the charger can receive the charging control information from the terminal in advance.
  • FIG. 7 is a working process of the charger, and the process corresponds to the working process of the terminal shown in FIG. 3 .
  • the charger When the charger is inserted into the terminal to be charged (S701), the charger performs a quick charge recognition preparation operation (S702). Then, it is detected at a certain time whether the charger confirmation command sent by the terminal is received (S703). If a confirmation command is received, a feedback confirmation signal is fed back to the terminal (S704). The D+ line is then connected to the VBUS line while the D- line is changed to the single line communication mode (S705). The charging is performed by the charging control information sent from the D-receiving terminal until the charging is completed (S706).
  • the D+ and D-switch are connected to a certain preset mode state (S708), for example, BC1.2.
  • S708 a protocol mode in which the terminal is charged until the end (S709).
  • FIG. 8 it is the working process of the charger, and the process corresponds to the working process of the terminal shown in FIG.
  • the workflow of the charger in FIG. 8 is substantially the same as that of the charger in FIG. 7.
  • the charger connects the D+ line and the D- line to the VBUS line after receiving the charger identification confirmation command. That is, the difference between FIG. 7 and FIG. 8 is only in S805-S806.
  • the embodiment of the present invention further provides a terminal 9.
  • the terminal can be a smartphone, a tablet, or the like.
  • the details involved in the first embodiment of the above charging method can be performed by the terminal 9.
  • the terminal 9 of the embodiment of the present invention may include: a charging management unit 91, a control switch 92, and a charging conversion unit 93.
  • the charging management unit 91 is configured to identify whether the access device inserted into the USB interface of the terminal is a fast charger that matches.
  • the control switch 92 is configured to connect at least one of the D+ line or the D- line of the terminal USB interface to the terminal USB when the charging management unit 91 recognizes that the access device inserted into the USB interface of the terminal is a matching fast charger.
  • the VBUS line of the interface is configured to connect at least one of the D+ line or the D- line of the terminal USB interface to the terminal USB when the charging management unit 91 recognizes that the access device inserted into the USB interface of the terminal is a matching fast charger.
  • the charge conversion unit 93 is configured to transmit to the terminal through the power line and the positive data line and/or the negative data line after the control switch 92 connects at least one of the D+ line or the D- line to the VBUS line
  • the power supply voltage is converted to the charging voltage of the terminal battery, and the charging input operation is performed for the terminal battery.
  • the charging management unit 91 identifies whether the access device inserted into the USB interface of the terminal is a fast charger matched thereto: when detecting that the access device is inserted into the USB interface of the terminal, the control control switch 92 will D+ The line and the D-line are connected to the charging management unit 91, perform a fast charge identification preparation operation, and initiate a charger identification confirmation command to the access device; and upon receiving the identification confirmation signal fed back by the access device according to the identification confirmation command Then, it is determined that the access device inserted into the USB interface of the terminal is a fast charger that matches it.
  • the charging management unit 91 is further configured to: when the identification confirmation signal fed back by the access device is not received within the preset time threshold, determining that the access device inserted into the USB interface of the terminal is not fast matching Charging the terminal, and detecting whether the access device is a charger; the charging conversion unit 93 is further configured to transmit the charger to the preset mode when detecting that the access device is a charger The power supply voltage of the terminal is converted into a charging voltage of the terminal battery to charge the terminal battery.
  • the control switch 92 is arranged to connect the D+ line and the D- line to the USB protocol processing chip of the terminal when the charging management unit 91 detects that the access device is not a charger, and causes the terminal to perform a USB protocol operation.
  • the charging management unit is further configured to:
  • control switch After the control switch connects one of the positive data line or the negative data line to the power line, during the charging operation performed by the charge conversion unit, the positive data line or the negative data line is used One of the data lines not connected to the power line transmits charging control information to the quick charger; or
  • the charging management unit After the charging management unit receives the identification confirmation signal fed back by the access device before the control switch connects the positive data line and the negative data line to the power line, the charging management unit passes the positive Any one of the data line and the negative data line, or the charging control information is transmitted to the fast charger through the two data lines of the positive data line and the negative data line.
  • the embodiment of the present invention further provides a charger 10.
  • the charger may include a charge management unit 101, a control switch 102, and a power output unit 103.
  • the charging management unit 101 is further configured to identify the terminal inserted into the USB interface of the charger. Whether it is a fast charging terminal matched thereto; the control switch 102 is configured to set the D+ line or D-line of the charger when the charging management unit 101 recognizes that the terminal inserted into the USB interface of the charger is a matching fast charging terminal At least one of the terminals is connected to the VBUS line of the charger; the power output unit 103 is configured to be configured to connect at least one of the D+ line or the D- line of the charger to the VBUS line of the charger when the control switch connects at least one of the D+ line or the D- line of the charger And converting a power voltage input to the terminal through the power line and the positive data line and/or the negative data line into a charging voltage of the terminal battery to perform a charging operation for the terminal battery.
  • the charging management unit 101 identifies whether the terminal inserted into the USB interface of the charger is a fast charging terminal that matches:
  • the power management output unit 103 performs a charging output operation, and the charging management unit is further configured to pass the positive data line or The remaining one of the negative data lines receives the charging control information from the terminal.
  • the charging management unit 101 transmits the identification confirmation signal to the terminal, the charging management unit 101 is further configured to receive the charging control information transmitted from the terminal.
  • FIG. 11 it is a schematic diagram of the terminal 9 and the charger 10 in the embodiment of the present invention.
  • the control control switch 102 connects D+ and D- to the charging management. Unit 101.
  • the control control switch 92 connects D+ and D- to the charging management unit 91, performs a quick charge recognition preparation operation, and initiates charger identification to the charger 10. Confirm the order.
  • the charging management unit 101 of the charger 10 and the charging management unit 91 of the terminal 9 are arranged to detect whether the terminal 9 is adapted to the charger 10, and if the adaptation is not successful, the charging management unit 101 of the charger 10 controls the control switch 102 to D+ and D- switches to a certain preset mode state, such as BC1.2 protocol mode, so that the terminal 9 can recognize it as a charger, and performs charging to the terminal 9, as shown in FIG. Similarly, when the terminal 9 detects that the charger 10 is not adapted to it, it also detects whether the access device is a charger that conforms to a certain preset mode, such as a BC1.2 protocol charger. If it is not the BC1.2 protocol charger, the charge management unit 912 controls the control switch 92 to switch D+ and D- to the USB protocol processing chip, as shown in FIG.
  • a certain preset mode state such as BC1.2 protocol mode
  • the charge management unit 91 connects the D+ line and the D- line to the charge management unit 91 through the control control switch 92, and initiates a charger identification confirmation command.
  • the charging management unit 92 receives the identification confirmation signal returned by the charger 10
  • the charging management unit 91 connects D+ to the VBUS line of the terminal 9 through the control control switch 92, and simultaneously changes the D-communication mode to the single-line communication mode, and starts.
  • the charge conversion unit 93 charges the battery 94 as shown in FIG.
  • the charging management unit 91 After the charging management unit 91 does not receive the identification confirmation signal returned by the charger 10, the charging management unit 91 considers that the access device is not a fast charger adapted thereto, and the charging management unit 91 detects whether the access device is BC1. .2 protocol charger. If it is confirmed that the access device is a charger complying with the BC1.2 protocol, the charge management unit 91 activates the charge conversion unit 93 to directly charge the battery 94 until the end. If the access device is also not a charger of the BC1.2 protocol, the charge management unit 91 controls the control switch 92 to switch the D+ line and the D- line to the USB protocol processing chip.
  • the charge management unit 101 of the charger 10 switches the D+ line and the D- line to the charge management unit 101 by controlling the control switch 102. Then, it is detected at a certain time whether the charger confirmation command sent by the terminal 9 is received. After receiving the confirmation command, the feedback identification signal is fed back to the terminal 9. The charge management unit 101 then controls the control switch 101 to connect the D+ line to the VBUS line while changing D- to the single line communication mode. D-transfer charging during charging The electrical control information is not finished.
  • the charger management unit 101 does not receive the charger confirmation command for a certain period of time, and the charge management unit 101 switches the D+ line and the D- line to a certain preset mode state, for example, the BC1.2 protocol mode, by controlling the control switch 101. In the mode, the terminal 9 is charged until the end.
  • a certain preset mode state for example, the BC1.2 protocol mode
  • FIG. 15 the process of transmitting the charging current through the D+ line and the VBUS line during charging is described.
  • FIG. 16 the workflow in FIG. 15 is substantially the same, except that during charging, D+ is performed.
  • the line, D-line, and VBUS line are used to transmit the charging current.
  • the charging management unit 91 of the terminal 9 after receiving the identification confirmation signal, connects D+, D- to VBUS through the control control switch 92, and activates the charging conversion unit 93 to supply the battery according to the information of the charger. 94 to charge.
  • the charge management unit 101 of the charger 10 connects D+, D- to the VBUS line by controlling the control switch 102. It should be noted that, after the adaptation, the terminal 9 can transmit its charging control information to the charger 10 before each control switch connects D+, D- to the VBUS line. The charging process is then initiated and the terminal 9 no longer communicates with the charger 10 during the entire charging process.
  • each module involved in the embodiment of the present invention is a logic module.
  • a logical unit may be a physical unit, or may be part of a physical unit, or may be multiple.
  • the present embodiment does not introduce a unit that is not closely related to solving the technical problem proposed by the embodiment of the present invention, but this does not indicate that there is no other in the present embodiment. Unit.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
  • a computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the charging method.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the charging current when the charging current is output to the terminal, in addition to the VBUS line, one or two of the positive data line D+ line or the negative data line D- line may be used, that is, previously passed.
  • the current that the fast charger transmits to the terminal through the VBUS line can now be transmitted at least through one or two of the VBUS line and the D+ line or the D- line, so that the charging current can be increased under the premise of the same line loss. Fast charging, and reduce the line loss caused by large current during USB charging under the same charging current.

Abstract

一种充电方法、充电器及终端，该充电方法包括：该终端识别插入终端USB接口的接入设备是否为与之匹配的快速充电器（S101）；当识别到插入终端USB接口的接入设备为与之匹配的快速充电器时，该终端将正数据线或负数据线中的至少一根连接到电源线（S105）；将通过该电源线以及该正数据线和/或负数据线传输给终端的电源电压转换为终端电池的充电电压，为终端电池执行充电操作（S104）。

Description

一种充电方法、充电器及终端 技术领域
本申请涉及但不限于充电技术领域，尤其涉及一种充电方法、充电器及终端。
背景技术
随着终端等便携式设备电池容量的增大，为了缩短终端的充电时间，出现了更加快速的充电方法。在终端与充电器进行适配后，通过增大充电器的输出电压或输出电流，用以提高终端的充电输入功率，从而在电池的充电曲线范围提高电池的充电电流，达到缩短充电时间目的。
在通过增大输出电压来实现增大输出功率方式中，一般会经过充电芯片将电源转换为符合电池充电的充电电压；但在进行电压转换的过程中，效率较低，另外充电芯片的发热使得输出电流有所限制。
在通过增大输出电流来实现增大输出功率方式中，一般会根据线路的压降抬升充电器的输出电压，使得适合电压的大电流能直接给电池进行充电。这种方式比增大输出电压的充电方式效率高。目前，充电过程都是通过USB(Universal Serial Bus通用串行总线)接口VBUS电源线传输电流，常规的线缆并不能用于大电流方式的充电，当电流超过1.8A时，终端的USB接口及充电线缆需要特殊定制，从而限制了该方式的使用。大电流传输会增加线路的损耗，降低充电效率。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例的目的在于提供一种充电方法、充电器及终端，在同等线路损耗前提下增大充电电流实现更加快速的充电，或在同等充电电流前提下减少USB充电过程中因大电流造成的线路损耗。
一种充电方法，应用于终端，所述终端的USB接口包括:电源线、正数据线和负数据线，该方法包括：
所述终端识别插入所述终端USB接口的接入设备是否为与之匹配的快速充电器；
当识别到插入所述终端USB接口的接入设备为与之匹配的快速充电器时，所述终端将所述正数据线或负数据线中的至少一根连接到所述电源线；
将通过所述电源线以及所述正数据线和/或负数据线传输给终端的电源电压转换为终端电池的充电电压，为终端电池执行充电操作。
可选地，所述终端识别插入所述终端USB接口的接入设备是否为与之匹配的快速充电器包括：
当检测到所述接入设备插入所述终端USB接口时，所述终端执行快速充电识别准备操作，并向所述接入设备发起充电器识别确认命令。
当接收到所述接入设备根据所述识别确认命令反馈的识别确认信号时，所述终端确定插入所述终端USB接口的接入设备为与之匹配的快速充电器。
可选地，所述方法还包括：
当在预设时间阈值内未接收到所述接入设备反馈的识别确认信号时，确定插入所述终端USB接口的接入设备不是与之匹配的快速充电器，并检测所述接入设备是否为充电器；
在检测到所述接入设备是充电器时，将所述充电器以预设模式传输给所述终端的电源电压转换为所述终端电池的充电电压，为所述终端电池充电。
在检测到所述接入设备不是充电器时，将所述正数据线和负数据线连接至所述终端的USB协议处理芯片，使所述终端执行USB协议操作。
可选地，所述方法还包括：
在所述终端将所述正数据线或负数据线中的一根连接到所述电源线之后，在执行充电输入操作的过程中，所述终端使用所述正数据线或负数据线中的未连接所述电源线的一根数据线将充电控制信息传输给所述快速充电器；或者，
在所述终端将所述正数据线和负数据线均连接到所述电源线之前，接收到所述接入设备反馈的识别确认信号之后，所述终端通过所述正数据线和负数据线中的任意一根数据线，或者通过所述正数据线和负数据线两根数据线 将充电控制信息传输给所述快速充电器。
一种充电方法，应用于充电器，所述充电器的USB接口包括:电源线、正数据线和负数据线,所述方法包括：
所述充电器识别插入所述充电器USB接口的终端是否为与之匹配的快速充电终端；
当识别到插入所述充电器USB接口的终端为与之匹配的快速充电终端时，所述充电器将所述正数据线或负数据线中的至少一根连接到所述电源线；
将通过所述电源线以及所述正数据线和/或负数据线输入到所述终端的电源电压转换为终端电池的充电电压，为终端电池执行充电操作。
可选地，所述充电器识别插入所述充电器USB接口的终端是否为与之匹配的快速充电终端包括：
当检测到所述终端插入所述充电器USB接口时，所述充电器执行快速充电识别准备操作。
当接收到所述终端发来的充电器识别确认命令时，所述充电器确认插入所述充电器USB接口的终端为与之匹配的终端，并返回识别确认信号给所述终端。
当在预设时间阈值内未接收到所述终端发来的充电器识别确认命令时，确定插入所述充电器USB接口的终端不是与之匹配的快速充电终端，将所述正数据线和负数据线连接至预设模式，使所述充电器在该预设模式下为插入所述充电器USB接口的终端充电。
可选地，所述方法还包括：在所述充电器将所述正数据线或负数据线中的一根连接到所述电源线之后，在执行充电操作的过程中，所述充电器使用所述正数据线或负数据线中的未连接所述电源线的一根数据线来接收所述终端传来的充电控制信息；或者，
在所述充电器将所述正数据线和负数据线均连接到所述电源线之前，所述充电器通过所述正数据线和负数据线中的任意一根数据线，或者通过所述正数据线和负数据线两根数据线接收所述终端传来的充电控制信息。
一种终端，包括：
充电管理单元，设置为识别插入所述终端USB接口的接入设备是否为与之匹配的快速充电器。
控制开关，设置为当所述充电管理单元识别到插入所述终端USB接口的接入设备为与之匹配的快速充电器时，将所述终端USB接口的正数据线或负数据线中的至少一根连接到所述终端USB接口的电源线；
充电转换单元，设置为当所述控制开关将所述正数据线或负数据线中的至少一根连接到所述电源线之后，将通过所述电源线以及所述正数据线和/或负数据线传输给终端的电源电压转换为终端电池的充电电压，为终端电池执行充电操作。
可选地，所述充电管理单元识别插入所述终端USB接口的接入设备是否为与之匹配的快速充电器包括：
当检测到所述接入设备插入所述终端USB接口时，执行快速充电识别准备操作，并向所述接入设备发起充电器识别确认命令；其中，所述快速充电识别准备操作包括：控制所述控制开关将所述正数据线和负数据线连接至所述充电管理单元。
当接收到所述接入设备根据所述识别确认命令反馈的识别确认信号时，则确定插入所述终端USB接口的接入设备为与之匹配的快速充电器。
可选地，所述充电管理单元，还设置为当在预设时间阈值内未接收到所述接入设备反馈的识别确认信号时，确定插入所述终端USB接口的接入设备不是与之匹配的快速充电终端，并检测所述接入设备是否为充电器；
所述充电转换单元，设置为在检测到所述接入设备是充电器时，将所述充电器以预设模式传输给所述终端的电源电压转换为所述终端电池的充电电压，为所述终端电池充电。
所述控制开关，设置为在检测到所述接入设备不是充电器时，将所述正数据线和负数据线连接至所述终端的USB协议处理芯片，使所述终端执行USB协议操作。
可选地，所述充电管理单元还设置为：在所述控制开关将所述正数据线 或负数据线中的一根连接到所述电源线之后，在所述充电转换单元执行充电操作的过程中，所述充电管理单元使用所述正数据线或负数据线中的未连接所述电源线的一根数据线将充电控制信息传输给所述快速充电器；或者，
在所述控制开关将所述正数据线和负数据线均连接到所述电源线之前，所述充电管理单元接收到所述接入设备反馈的识别确认信号之后，所述充电管理单元通过所述正数据线和负数据线中的任意一根数据线，或者通过所述正数据线和负数据线两根数据线将充电控制信息传输给所述快速充电器。
一种充电器，包括：
充电管理单元，设置为识别插入充电器USB接口的终端是否为与之匹配的快速充电终端。
控制开关，设置为当所述充电管理单元识别到插入所述充电器USB接口的终端为与之匹配的快速充电终端时，将所述正数据线或负数据线中的至少一根连接到所述电源线。
电源输出单元，设置为当所述控制开关将所述正数据线或负数据线中的至少一根连接到所述电源线之后，将通过所述电源线以及所述正数据线和/或负数据线输入到所述终端的电源电压转换为终端电池的充电电压，为终端电池执行充电操作。
可选地，所述充电管理单元识别插入所述充电器USB接口的终端是否为与之匹配的快速充电终端包括：
当检测到所述终端插入所述充电器USB接口时，执行快速充电识别准备操作；其中，所述快速充电识别准备操作包括：控制所述控制开关将所述正数据线和负数据线连接至所述充电管理单元。
当接收到所述终端发来的充电器识别确认命令时，确定插入所述充电器USB接口的终端为与之匹配的快速充电终端，并返回识别确认信号给所述终端。
当在预设时间阈值内未接收到所述终端发来的充电器识别确认命令时，确定插入所述充电器USB接口的终端不是与之匹配的快速充电终端，控制所述控制开关将所述正数据线和负数据线连接至预设模式，使所述充电器在该 预设模式下为插入所述充电器USB接口的终端充电。
可选地，所述充电管理单元还设置为：在所述控制开关将所述正数据线或负数据线中的一根连接到所述电源线之后，所述电源输出单元执行充电操作的过程中，所述充电管理单元还通过所述正数据线或负数据线中的未连接所述电源线的一根来接收所述终端传来的充电控制信息。或者，
在所述控制开关将所述正数据线和负数据线均连接到所述电源线之前，所述充电管理单元发送所述识别确认信号给所述终端之后，所述充电管理单元通过所述正数据线和负数据线中的任意一根数据线，或者通过所述正数据线和负数据线两根数据线接收所述终端传来的充电控制信息。
一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现所述的充电方法。
本发明实施例的有益效果是：
本发明实施例方案中的充电器在向终端输出充电电流时，除可以依靠VBUS线以外，还可以依靠正数据线D+线或负数据线D-线中的一根或两根，即以前通过快速充电器通过VBUS线传输给终端的电流，现在至少可以通过VBUS线，以及D+线或D-线中的一根或两根来进行传输，这样可以在同等线路损耗前提下增大充电电流实现更加快速的充电，并且在同等充电电流前提下减少USB充电过程中因大电流造成的线路损耗。
附图概述
图1是本发明实施例的充电方法的第一实施例的流程示意图；
图2是图1中S101的实施例的流程示意图；
图3是本发明实施例的充电方法的第二实施例的流程示意图；
图4是本发明实施例的充电方法的第三实施例的流程示意图；
图5是本发明实施例的充电方法的第四实施例的流程示意图；
图6是图5中S501的实施例的流程示意图；
图7是本发明实施例的充电方法的第五实施例的流程示意图；
图8是本发明实施例的充电方法的第六实施例的流程示意图；
图9是本发明实施例的终端的实施例的结构示意图；
图10是本发明实施例的充电器的实施例的结构示意图；
图11-图16是本发明实施例的充电原理图。
本发明的实施方式
下文中将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
在进行充电的过程中，通常包括充电器和终端两个部分。充电器通过USB线缆输出功率给终端的电池，因此在充电过程中，需要充电器和终端的相互配合，从而实现给终端充电。基于上述理解，本发明实施例提出了一种充电方法、充电器及终端。下面将通过实施例进行详细描述。
请参考图1，是本发明实施例的充电方法的第一实施例的流程示意图。图1所示的实施例，将从终端侧描述充电过程。该终端的USB接口包括:电源线(后文简称为VBUS线)、正数据线(后文简称为D+线)、负数据线(后文简称为D-线)以及地线(即GND线)。本发明实施例的充电方法包含步骤S101-S105：
S101,终端识别插入终端USB接口的接入设备是否为与之匹配的快速充电器。
其中，S101中对插入终端USB接口的接入设备进行识别的目的是：判断终端下一步该执行什么操作，如果识别到插入终端USB接口的接入设备为与之匹配的快速充电器时，则终端需要执行S105，如果识别到插入其USB接口的接入设备不是与之匹配的快速充电器时，终端再做进一步的检测，以判断下一步的操作。
可选地，终端在识别插入终端USB接口的接入设备是否为与之匹配的快速充电器时，即在执行S101时，如图2所示，可以包括步骤S1011-S1012：
S1011，当检测到该接入设备插入终端USB接口时，终端执行快速充电识别准备操作，并向接入设备发起充电器识别确认命令。
本步骤中，终端向设备发起的充电器识别确认命令例如可以是：电压拉 高或拉低的识别命令。
S1012，当接收到该接入设备根据识别确认命令反馈的识别确认信号时，终端确定插入终端USB接口的接入设备为与之匹配的快速充电器。
在终端识别到插入终端USB接口的接入设备为与之匹配的快速充电器，即终端与快速充电器适配时，则执行S105后，再执行S103；在终端识别到插入其USB接口的接入设备不是与之匹配的快速充电器时，如终端在向接入设备发起充电器识别确认命令之后，没有接收到接入设备返回的识别确认信号时，终端则认为插入终端USB接口的接入设备不是与之匹配的快速充电器，即终端与快速充电器没有适配时，此时则执行S102-S104。
S102，当在预设时间阈值内未接收到所述接入设备反馈的识别确认信号时，确定插入所述终端USB接口的接入设备不是与之匹配的快速充电器，并检测所述接入设备是否为充电器。
本步骤中，终端与快速充电器没有适配成功，终端需要检测插入终端USB接口的设备是否为常规的充电器，如符合某种预设模式的充电器，例如BC1.2协议的充电器。如果接入设备是充电器，则执行S103；如果接入设备不是充电器，则执行S104。
S103，在检测到接入设备是充电器时，将所述充电器以预设模式传输给所述终端的电源电压转换为所述终端电池的充电电压，为所述终端电池充电。
在本发明实施例中，如果检测到插入的充电器不是快速充电器，那么该充电器肯定符合行业内要求的基本标准，例如BC1.2协议，根据该充电器所符合的不同的基本标准，该充电器可以设置为不同的充电模式，即本发明实施例中的预设模式，也可以称为常规模式。
因此，当检测到插入的充电器不是快速充电器时，本步骤执行常规充电操作，可以使用相关技术中的任何一种充电方式，在充电完成之后，本次充电过程结束。
S104，在检测到接入设备不是充电器时，将正数据线和负数据线连接至终端的USB协议处理芯片，使终端执行USB协议操作。
本步骤中，终端检测到插入的接入设备不是充电器，则终端需要将其D+线和D-线连接至终端的USB协议处理芯片，以执行USB协议操作。
S105,终端将D+线或D-线中的至少一根连接到VBUS线。
在S105中，终端将其USB接口上的D+线或D-线中的一根或两根连接到VBUS线上，相应地，此时与之匹配的快速充电器也将终端USB接口上的D+线或D-线中的一根或两根连接到VBUS线上，且和终端连接到VBUS的D+线或D-线选择是一样的。此时，终端与快速充电器之间便可执行S103,即充电输入操作，在执行S103的过程中，可以使用VBUS线以及D+线或D-线中的一根或两根来进行电流传输。与目前仅使用VBUS线传输电流进行充电的技术方案相比，本发明实施例的快速充电器在向终端输出充电电流时，除可以依靠VBUS线以外，还可以依靠D+线或D-线中的一根或两根，即以前通过快速充电器通过VBUS线传输给终端的电流，现在至少可以通过VBUS线，以及D+线或D-线中的一根或两根来进行传输，这样可以在同等线路损耗前提下增大充电电流实现更加快速的充电，或还可以在同等充电电流前提下减少USB充电过程中因大电流造成的线路损耗。如，根据功率公式，相关技术中仅使用VBUS线传输充电电流时的线路损耗为P＝I2×R；当使用本发明实施例的方案传输同样充电电流时，如果使用VBUS线和D+线，或VBUS线和D-线来传输电流时，此时的线路损耗为P’＝2×(I/2)2×R＝1/2×I2×R＝P/2，即总线路损耗为相关技术的一半；如果使用VBUS线，以及D+线和D-线来传输电流，则此时的线路损耗为P”＝3×(I/3)2×R＝1/3×I2×R＝P/3，即总线路损耗为相关技术的1/3。
需要说明的是，当终端使用其终端VBUS线和D+线来传输电流时，在充电过程中，D-线的通讯方式变更为单线通讯方式，终端可以使用D-线将充电控制信息传输给快速充电器，直至充电结束；当VBUS线和D-线中来传输电流时，在充电过程中，D+线的通讯方式变更为单线通讯方式，终端可以使用D+线将充电控制信息传输给快速充电器，直至充电结束。其中，传输的充电控制信息例如可以包括：终端的电池容量、电流情况等。
当终端使用其VBUS线、D+线和D-线来传输电流时，在充电过程中，由于D+线和D-线均用来传输电流，因此，在将D+线和D-线均连接到VBUS 线之前，终端可以提前将充电控制信息传输给快速充电器。
下面，将通过图3及图4，详细描述终端侧的对充电器的判别及充电过程。
如图3所示，当终端的USB接口有接入设备插入时(S301)，终端执行快速充电识别准备操作(S302)，发起充电器识别确认命令(S303)。终端检测是否接收到接入设备返回的识别确认信号(S304)，在收到接入设备返回的识别确认信号之后，终端将D+线连接到插入终端的VBUS线，同时将D-线通讯方式变更为单线通讯方式(S305)，并启动充电输入操作，给电池进行充电(S306)。并通过D-传递充电控制信息给充电器，判断充电是否结束(S307)。在充电结束之后，停止充电(S308)。
当没有收到接入设备返回的识别确认信号，终端检测接入设备是否未为BC1.2协议的充电器(S309)。终端确认接入设备是符合设备是符合BC1.2协议的充电器，启动充电转换，执行常规充电操作，给电池进行充电直到结束。待充电完成后，充电结束(S308)。如果接入设备也不是BC1.2协议的充电器，终端则执行USB协议操作，将D+线和D-线切换连接至USB协议处理芯片(S310)。本实施例在充电过程中，由于使用VBUS线和D+线来传输电流，与相关技术中仅使用VBUS线传输充电电流时的线路损耗为P＝I2×R相比，使用本发明实施例的方案传输同样充电电流时的线路损耗为P’＝2×(I/2)2×R＝1/2×I2×R＝P/2，即总线路损耗为相关技术的一半；或者在同等总的总线路损耗相同的前提下可实现快速的充电，充电电流是仅使用VBUS线传输充电电流时的1.4倍；或者在每条线路损耗和VBUS线一样的前提下，可以实现充电电流为仅VBUS线传输的充电电流的2倍。
如图4所示，图4中终端的工作流程与图3中终端的工作流程大致相同，唯一的区别仅在于，终端在接收到识别确认信号之后，将D+线和D-线切换连接至VBUS线，即图3和图4的区别仅在于S405。本实施例在充电过程中，由于使用VBUS线、D+线和D-线来传输电流，与相关技术中仅使用VBUS线传输充电电流时的线路损耗为P＝I2×R相比，使用本发明实施例的方案传输同样充电电流时的线路损耗为P”＝3×(I/3)2×R＝1/3×I2×R＝P/3，即总线路损耗为相关技术的1/3；或者在总线路损耗相同的前提下实现快速的充电， 充电电流是仅使用VBUS线传输充电电流时的1.7倍；或者在每条线路损耗和VBUS线一样的前提下，可以实现充电电流为仅使用VBUS线传输充电电流时的3倍。
请参考图5，是本发明实施例提供的充电方法的第四实施例的流程示意图。图5所示的实施例，将从充电器侧描述充电过程，其与图1所示的实施例中的终端侧描述相互对应。该充电器的USB接口包括:电源线(后文简称为VBUS线)、正数据线(后文简称为D+线)、负数据线(后文简称为D-线)以及地线(即GND线)。本发明实施例的充电方法，其包含步骤S501-S505：
S501，充电器识别插入充电器USB接口的终端是否为与之匹配的快速充电终端。
其中，S501中充电器对插入充电器USB接口的设备进行识别的目的是：判断充电器该如何输出电流；如果识别到插入其USB接口的终端为与之匹配的快速充电终端时，则充电器执行S502-S503；如果识别到插入充电器USB接口的设备不是与之匹配的快速充电终端时，则执行S504，S504与S102对应，充电器则将其置于某种预设模式，例如BC1.2协议模式，在该预设模式下给终端进行充电直至结束。
充电器在识别插入充电器USB接口的终端是否为与之匹配的快速充电终端时，即执行S501时，如图6所示，可以包括步骤S5011-S5012：
S5011，当检测到终端插入充电器USB接口时，充电器执行快速充电识别准备操作。
S5012，当在预设时间阈值内接收到终端发来的充电器识别确认命令时，充电器确定插入充电器USB接口的终端为与之匹配的快速充电终端，同时返回识别确认信号给该终端。
S5013，当在预设时间阈值内未接收到所述终端发来的充电器识别确认命令时，确定插入所述充电器USB接口的终端不是与之匹配的快速充电终端，将所述正数据线和负数据线连接至预设模式，使所述充电器在该预设模式下为插入所述充电器USB接口的终端充电。
可以理解的是，S5011-S5013与S1011-S1012相呼应，通过该相呼应的 步骤，终端和充电器之间可以快速判断彼此之间是否适配。
在充电器识别到插入充电器USB接口的设备为与之匹配的快速充电终端时，即终端与充电器适配时，则执行S502-S503；在充电器识别到插入充电器USB接口的设备不是与之匹配的快速充电终端时，如充电器在预设时间阈值内没有收到终端发来的充电器识别确认命令，则充电器认为终端不是与之匹配的快速充电终端，此时充电器也无需反馈识别确认信号给终端，即终端与充电器没有适配时，此时则执行S504。
S502,充电器将充电器USB接口的正数据线或负数据线中的至少一根连接到其电源线。
S503,将通过所述电源线以及所述正数据线和/或负数据线输入到所述终端的电源转换为电池充电电压为终端电池执行充电操作。
步骤S502-S503与S105、S103对应，当充电器识别到插入充电器USB接口的终端为与之匹配的快速充电终端时，需要将充电器USB接口的D+线或D-线中的至少一根连接到其VBUS线上。相应地，此时与之匹配的快速充电终端也将终端USB接口上的D+线或D-线中的一根或两根连接到VBUS线上，且和终端连接到VBUS的D+线或D-线选择是一样的。此时，终端与充电器之间便可实现快速的充电操作，即，对充电器来说则使用其VBUS线，以及D+线或D-线中的一根或两根来输出充电电流给终端；对快速充电终端来说则使用其VBUS线，以及D+线或D-线中的一根或两根来接收充电器输出的充电电流。与目前VBUS线传输电流以实现充电的技术方案相比，本发明实施例的充电器在向终端输出充电电流时，除可以依靠VBUS线以外，还可以依靠D+线或D-线中的一根或两根，即以前通过VBUS线传输给终端的电流，现在至少可以通过VBUS线，以及D+线或D-线中的一根或两根来进行传输，这样可以在同等充电电流前提下减少USB充电过程中因大电流造成的线路损耗。如，根据功率公式，相关技术中仅使用VBUS线传输充电电流时的线路损耗为P＝I2×R；当使用本发明实施例的方案传输同样充电电流时，若使用VBUS线和D+线，或VBUS线和D-线来传输电流时，此时的线路损耗为P’＝2×(I/2)2×R＝1/2×I2×R＝P/2，即总线路损耗为相关技术的一半；若使用VBUS线，以及D+线和D-线来传输电流，则此时的线路损耗为 P”＝3×(I/3)2×R＝1/3×I2×R＝P/3，即总线路损耗为相关技术的1/3。或在保证相同线路损耗时，如果使用VBUS线和D+线，或VBUS线和D-线来传输充电电流时，传输的充电电流为仅使用VBUS线传输充电电流的1.4倍；如果使用VBUS线，以及D+线和D-线来传输充电电流，传输电的充电流为仅使用VBUS传输充电电流的1.7倍。或在每条线路损耗相同的前提下，如果使用VBUS线和D+线，或VBUS线和D-线来传输充电电流时，传输的充电电流为仅使用VBUS线传输充电电流时的2倍；如果使用VBUS线，以及D+线和D-线来传输充电电流，传输的充电电流为仅使用VBUS线传输充电电流的3倍。
需要说明的是，当充电器使用其VBUS线和D+线来传输电流时，在充电过程中，D-线的通讯方式变更为单线通讯方式，充电器可以使用D-线来接收终端发来的充电控制信息，直至充电结束；当充电器使用其VBUS线和D-线中来传输电流时，在充电过程中，D+线的通讯方式变更为单线通讯方式，充电器可以使用D+线来接收终端发来的充电控制信息，直至充电结束。其中，传输的充电控制信息例如可以包括：终端的电池容量、电流情况等。
当充电器使用其VBUS线、D+线和D-线来传输电流时，在充电过程中，由于D+线和D-线均用来传输电流，因此，在将D+线和D-线均连接到VBUS线之前，充电器可以提前接收终端传来的充电控制信息。
S504，当在预设时间阈值内未接收到所述终端发来的充电器识别确认命令时，确定插入所述充电器USB接口的终端不是与之匹配的快速充电终端，将所述正数据线和负数据线连接至预设模式，使所述充电器在该预设模式下为插入所述充电器USB接口的终端充电。
下面，将通过图7至图8，详细描述充电器对终端的识别及充电过程。
请参考图7，是充电器的工作过程，该过程与图3所示的终端的工作过程对应。当充电器插入待充电终端后(S701)，充电器执行快速充电识别准备操作(S702)。随后在某段时间探测是否收到终端发过来的充电器确认命令(S703)。如果收到确认命令后，反馈识别确认信号给终端(S704)。随后将D+线连接到VBUS线，同时将D-线改变为单线通讯方式(S705)。通过D-接收终端发来的充电控制信息进行充电直至充电结束(S706)。在预设 时间阈值内，例如某段时间内没有收到充电器确认命令(S707)，即确认超时，则将D+和D-切换连接到某种预设模式状态(S708)，例如BC1.2协议模式，在该预设模式下给终端充电直至结束(S709)。本实施例的充电器在充电过程中，由于使用VBUS线和D+线来传输电流给终端，与相关技术中仅使用VBUS线传输充电电流时的线路损耗为P＝I2×R相比，使用本发明实施例的方案传输同样充电电流时的线路损耗为P’＝2×(I/2)2×R＝1/2×I2×R＝P/2，即总线路损耗为相关技术的一半。
如图8所示，是充电器的工作过程，该过程与图4所示的终端的工作过程对应。图8中充电器的工作流程与图7中充电器的工作流程大致相同，唯一的区别仅在于，充电器在接收到充电器识别确认命令之后，将D+线和D-线切换连接至VBUS线，即图7和图8的区别仅在于S805-S806。本实施例在充电过程中，由于充电器使用VBUS线、D+线和D-线来传输电流给终端，与相关技术中仅使用VBUS线传输充电电流时的线路损耗为P＝I2×R相比，使用本发明实施例的方案传输同样充电电流时的线路损耗为P”＝3×(I/3)2×R＝1/3×I2×R＝P/3，即总线路损耗为相关技术的1/3。
对应于上述充电方法的第一实施例，本发明实施例还提供了一种终端9。该终端可以为智能手机、平板电脑等。上述充电方法的第一实施例中涉及的细节均可以由该终端9来执行。
如图9所示，本发明实施例的终端9可以包含：充电管理单元91、控制开关92以及充电转换单元93。
其中，充电管理单元91，设置为识别插入终端USB接口的接入设备是否为与之匹配的快速充电器。
控制开关92，设置为在充电管理单元91识别插入终端USB接口的接入设备为与之匹配的快速充电器时，将终端USB接口的D+线或D-线中的至少一根连接到终端USB接口的VBUS线。
充电转换单元93，设置为当控制开关92将D+线或D-线中的至少一根连接到VBUS线之后，将通过所述电源线以及所述正数据线和/或负数据线传输给终端的电源电压转换为终端电池的充电电压，为终端电池执行充电输入操作。
可选地，充电管理单元91识别插入所述终端USB接口的接入设备是否为与之匹配的快速充电器包括：当检测到该接入设备插入终端的USB接口时，控制控制开关92将D+线和D-线连接至充电管理单元91，执行快速充电识别准备操作，并向接入设备发起充电器识别确认命令；以及在接收到接入设备根据所述识别确认命令反馈的识别确认信号时，则确定插入终端USB接口的接入设备为与之匹配的快速充电器。
可选地，充电管理单元91还设置为当在预设时间阈值内未接收到所述接入设备反馈的识别确认信号时，确定插入所述终端USB接口的接入设备不是与之匹配的快速充电终端，并检测所述接入设备是否为充电器；所述充电转换单元93，还设置为在检测到所述接入设备是充电器时，将所述充电器以预设模式传输给所述终端的电源电压转换为所述终端电池的充电电压，为所述终端电池充电。
控制开关92，设置为在充电管理单元91检测到接入设备不是充电器时，将D+线和D-线连接至终端的USB协议处理芯片，使终端执行USB协议操作。
可选地，所述充电管理单元还设置为：
在所述控制开关将所述正数据线或负数据线中的一根连接到所述电源线之后，在所述充电转换单元执行充电操作的过程中，使用所述正数据线或负数据线中的未连接所述电源线的一根数据线将充电控制信息传输给所述快速充电器；或者，
在所述控制开关将所述正数据线和负数据线连接到所述电源线之前所述充电管理单元接收到所述接入设备反馈的识别确认信号之后，所述充电管理单元通过所述正数据线和负数据线中的任意一根数据线，或者通过所述正数据线和负数据线两根数据线将充电控制信息传输给所述快速充电器。
对应于上述充电方法的第四实施例，本发明实施例还提供了一种充电器10。上述充电方法的第四实施例中涉及的细节均可以由该充电器来执行。如图10所示，该充电器可以包括：充电管理单元101、控制开关102、电源输出单元103。
可选地，充电管理单元101，还设置为识别插入充电器USB接口的终端 是否为与之匹配的快速充电终端；控制开关102，设置为当充电管理单元101识别到插入充电器USB接口的终端为与之匹配的快速充电终端时，将充电器的D+线或D-线中的至少一根连接到充电器的VBUS线；电源输出单元103，设置为当控制开关将充电器的D+线或D-线中的至少一根的至少一根连接到充电器的VBUS线之后，将通过所述电源线以及所述正数据线和/或负数据线输入到所述终端的电源电压转换为终端电池的充电电压，为终端电池执行充电操作。
充电管理单元101识别插入所述充电器USB接口的终端是否为与之匹配的快速充电终端包括：
当检测到终端插入充电器USB接口时，执行快速充电识别准备操作；其中，所述快速充电识别准备操作包括：控制所述控制开关将所述正数据线和负数据线连接至所述充电管理单元。当接收到终端发来的充电器识别确认命令时，确定插入USB接口的终端为与之匹配的快速充电终端，并返回识别确认信号给该终端。
当在预设时间阈值内未接收到所述终端发来的充电器识别确认命令时，确定插入所述充电器USB接口的终端不是与之匹配的快速充电终端，控制所述控制开关将所述正数据线和负数据线连接至预设模式，使所述充电器在该预设模式下为插入所述充电器USB接口的终端充电。
可选地，在控制开关102将D+线或D-线中的一根连接到VBUS线之后，电源输出单元103执行充电输出操作的过程中，充电管理单元还设置为通过所述正数据线或负数据线中的其余一根来接收所述终端传来的充电控制信息。和/或，在控制开关102将D+线和D-线连接到VBUS线之后，充电管理单元101发送识别确认信号给终端之后，充电管理单元101还设置为接收终端传来的充电控制信息。
下面，将通过图11至图16，详细描述本发明实施例的充电器与终端之间进行更加快速的充电的原理及工作过程。
如图11所示，是本发明实施例的终端9与充电器10的原理图。如图12所示，当充电器10与终端9通过USB线缆连接时，此时，充电器10的充电管理单元101检测到终端时，控制控制开关102将D+和D-连接至充电管理 单元101。终端9的充电管理单元91检测到充电器10的插入USB接口时，控制控制开关92将D+和D-连接至充电管理单元91，执行快速充电识别准备操作，并向充电器10发起充电器识别确认命令。
充电器10的充电管理单元101和终端9的充电管理单元91设置为检测终端9与充电器10是否适配，如果没有适配成功，充电器10的充电管理单元101控制控制开关102将D+和D-切换至某种预设模式状态，例如BC1.2协议模式，以便终端9都能识别其为充电器，进行给终端9进行充电，如图13所示。同样，当终端9检测充电器10与其不适配时，也要检测接入设备是否是符合某种预设模式的充电器，例如BC1.2协议充电器。如果不是BC1.2协议充电器，充电管理单元912控制控制开关92将D+和D-切换给USB协议处理芯片，如图14所示。
请参考图15，将从终端侧描述终端9对充电器10的判别及充电过程。对终端9来说，当有设备插入时，充电管理单元91通过控制控制开关92将D+线和D-线连接至充电管理单元91，并发起充电器识别确认命令。当充电管理单元92收到充电器10返回的识别确认信号后，充电管理单元91通过控制控制开关92将D+连接到终端9的VBUS线，同时将D-通讯方式变更为单线通讯方式，并启动充电转换单元93给电池94进行充电，如图15所示。当充电管理单元91没有收到充电器10返回的识别确认信号之后，充电管理单元91则认为接入设备不是与之适配的快速充电器，此时充电管理单元91检测接入设备是否是BC1.2协议的充电器。如果确认接入设备是符合BC1.2协议的充电器，充电管理单元91启动充电转换单元93，直接给电池94进行充电直到结束。如果接入设备也不是BC1.2协议的充电器，充电管理单元91则控制控制开关92，将D+线和D-线切换连接至USB协议处理芯片。
请继续参考图15，将从充电器侧描述充电器10对终端9的判别及充电过程。当充电器插入待充电终端后，充电器10的充电管理单元101通过控制控制开关102，将D+线和D-线切换连接到充电管理单元101。随后在某段时间探测是否收到终端9发过来的充电器确认命令。收到确认命令后，反馈识别确认信号给终端9。随后充电管理单元101控制控制开关101，将D+线连接到VBUS线，同时将D-改变为单线通讯方式。充电过程中通过D-传输充 电控制信息直至结束。在某段时间内没有收到充电器确认命令，充电管理单元101通过控制控制开关101，将D+线和D-线切换连接到某种预设模式状态，例如BC1.2协议模式，在该预设模式下给终端9充电直至结束。
图15中，描述的是充电过程中，通过D+线和VBUS线来传输充电电流的过程，下面请参考图16,其于图15的工作流程大体相同，区别在于，在充电过程中，通过D+线、D-线以及VBUS线来传输充电电流。
在图16中，终端9的充电管理单元91在接收到识别确认信号之后，通过控制控制开关92将将D+、D-都连接到VBUS，并根据充电器的信息，启动充电转换单元93给电池94进行充电。对于充电器10来说，充电器10和终端9适配后，充电器10的充电管理单元101通过控制控制开关102将D+、D-连接到VBUS线。需要说明的是，在适配之后，每个控制开关将D+、D-连接到VBUS线之前，终端9可以将其充电控制信息发送给充电器10。然后启动充电过程，在整个充电过程中，终端9不再对充电器10进行通讯。
值得一提的是，本发明实施例所涉及到的每个模块均为逻辑模块，在实际应用中，一个逻辑单元可以是一个物理单元，也可以是一个物理单元的一部分，还可以以多个物理单元的组合实现。此外，为了突出本发明实施例的创新部分，本实施方式中并没有将与解决本发明实施例所提出的技术问题关系不太密切的单元引入，但这并不表明本实施方式中不存在其它的单元。
本领域普通技术人员可以理解实现上述实施方式方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述每个方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random Access Memory，RAM)等。
一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现所述的充电方法。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中，所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行， 在执行时，包括方法实施例的步骤之一或其组合。
可选地，上述实施例的全部或部分步骤也可以使用集成电路来实现，这些步骤可以被分别制作成一个个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。
上述实施例中的装置/功能模块/功能单元可以采用通用的计算装置来实现，它们可以集中在单个的计算装置上，也可以分布在多个计算装置所组成的网络上。
上述实施例中的装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器，磁盘或光盘等。
工业实用性
本发明实施例方案中的充电器在向终端输出充电电流时，除可以依靠VBUS线以外，还可以依靠正数据线D+线或负数据线D-线中的一根或两根，即以前通过快速充电器通过VBUS线传输给终端的电流，现在至少可以通过VBUS线，以及D+线或D-线中的一根或两根来进行传输，这样可以在同等线路损耗前提下增大充电电流实现更加快速的充电，并且在同等充电电流前提下减少USB充电过程中因大电流造成的线路损耗。

Claims (15)

  1. 一种充电方法，应用于终端，所述终端通用串行总线USB接口包括:电源线、正数据线和负数据线，所述方法包括：
    所述终端识别插入所述终端USB接口的接入设备是否为与之匹配的快速充电器；
    当识别到插入所述终端USB接口的接入设备为与之匹配的快速充电器时，所述终端将所述正数据线或负数据线中的至少一根连接到所述终端USB接口的电源线；
    将通过所述电源线以及所述正数据线和/或负数据线传输给终端的电源电压转换为终端电池的充电电压，为终端电池执行充电操作。
  2. 根据权利要求1所述的充电方法，其中，所述终端识别插入所述终端USB接口的接入设备是否为与之匹配的快速充电器包括：
    当检测到所述接入设备插入所述终端USB接口时，所述终端执行快速充电识别准备操作，并向所述接入设备发起充电器识别确认命令；
    当接收到所述接入设备根据所述识别确认命令反馈的识别确认信号时，所述终端确定插入所述终端USB接口的接入设备为与之匹配的快速充电器。
  3. 根据权利要求2所述的充电方法，所述方法还包括：
    当在预设时间阈值内未接收到所述接入设备反馈的识别确认信号时，确定插入所述终端USB接口的接入设备不是与之匹配的快速充电器并检测所述接入设备是否为充电器；
    在检测到所述接入设备是充电器时，将所述充电器以预设模式传输给所述终端的电源电压转换为所述终端电池的充电电压，为所述终端电池充电；
    在检测到所述接入设备不是充电器时，将所述正数据线和负数据线连接至所述终端的USB协议处理芯片，使所述终端执行USB协议操作。
  4. 根据权利要求1或2所述的充电方法，所述方法还包括：
    在所述终端将所述正数据线或负数据线中的一根连接到所述电源线之后，在执行充电操作的过程中，所述终端使用所述正数据线或负数据线中的 未连接所述电源线的一根数据线将充电控制信息传输给所述快速充电器；或者，
    在所述终端将所述正数据线和负数据线均连接到所述电源线之前，接收到所述接入设备反馈的识别确认信号之后，所述终端通过所述正数据线和负数据线中的任意一根数据线，或者通过所述正数据线和负数据线两根数据线将充电控制信息传输给所述快速充电器。
  5. 一种充电方法，应用于充电器，所述充电器的USB接口包括:电源线、正数据线和负数据线，所述方法包括：
    所述充电器识别插入所述充电器USB接口的终端是否为与之匹配的快速充电终端；
    当识别到插入所述充电器USB接口的终端为与之匹配的快速充电终端时，所述充电器将所述正数据线或负数据线中的至少一根连接到所述电源线；
    将通过所述电源线以及所述正数据线和/或负数据线输入到所述终端的电源电压转换为终端电池的充电电压，为终端电池执行充电操作。
  6. 根据权利要求5所述的充电方法，其中，所述充电器识别插入所述充电器USB接口的终端是否为与之匹配的快速充电终端包括：
    当检测到所述终端插入所述充电器USB接口时，所述充电器执行快速充电识别准备操作；
    当接收到所述终端发来的充电器识别确认命令时，所述充电器确定插入所述充电器USB接口的终端为与之匹配的快速充电终端，并返回识别确认信号给所述终端；
    当在预设时间阈值内未接收到所述终端发来的充电器识别确认命令时，确定插入所述充电器USB接口的终端不是与之匹配的快速充电终端，将所述正数据线和负数据线连接至预设模式，使所述充电器在该预设模式下为插入所述充电器USB接口的终端充电。
  7. 根据权利要求5或6所述的充电方法，所述方法还包括：
    在所述充电器将所述正数据线或负数据线中的一根连接到所述电源线之后，在执行充电操作的过程中，所述充电器使用所述正数据线或负数据线中 的未连接所述电源线的一根数据线来接收所述终端传来的充电控制信息；或者，
    在所述充电器将所述正数据线和负数据线均连接到所述电源线之前，所述充电器通过所述正数据线和负数据线中的任意一根数据线，或者通过所述正数据线和负数据线两根数据线接收所述终端传来的充电控制信息。
  8. 一种终端，包括：
    充电管理单元，设置为识别插入所述终端USB接口的接入设备是否为与之匹配的快速充电器；
    控制开关，设置为当所述充电管理单元识别到插入所述终端USB接口的接入设备为与之匹配的快速充电器时，将所述终端USB接口的正数据线或负数据线中的至少一根连接到所述终端USB接口的电源线；
    充电转换单元，设置为当所述控制开关将所述正数据线或负数据线中的至少一根连接到所述电源线之后，将通过所述电源线以及所述正数据线和/或负数据线传输给终端的电源电压转换为终端电池的充电电压，为终端电池执行充电操作。
  9. 根据权利要求8所述的终端，其中，所述充电管理单元识别插入所述终端USB接口的接入设备是否为与之匹配的快速充电器包括：
    当检测到所述接入设备插入所述终端USB接口时，执行快速充电识别准备操作，并向所述接入设备发起充电器识别确认命令；其中，所述快速充电识别准备操作包括：控制所述控制开关将所述正数据线和负数据线连接至所述充电管理单元；
    当接收到所述接入设备根据所述识别确认命令反馈的识别确认信号时，则确定插入所述终端USB接口的接入设备为与之匹配的快速充电器。
  10. 根据权利要求8或9所述的终端，所述充电管理单元，还设置为当在预设时间阈值内未接收到所述接入设备反馈的识别确认信号时，确定插入所述终端USB接口的接入设备不是与之匹配的快速充电终端，并检测所述接入设备是否为充电器；
    所述充电转换单元，还设置为在检测到所述接入设备是充电器时，将所 述充电器以预设模式传输给所述终端的电源电压转换为所述终端电池的充电电压，为所述终端电池充电；
    所述控制开关，设置为在检测到所述接入设备不是充电器时，将所述正数据线和负数据线连接至所述终端的USB协议处理芯片，使所述终端执行USB协议操作。
  11. 根据权利要求8所述的终端，所述充电管理单元还设置为：
    在所述控制开关将所述正数据线或负数据线中的一根连接到所述电源线之后，在所述充电转换单元执行充电操作的过程中，使用所述正数据线或负数据线中的未连接所述电源线的一根数据线将充电控制信息传输给所述快速充电器；或者，
    在所述控制开关将所述正数据线和负数据线均连接到所述电源线之前，所述充电管理单元接收到所述接入设备反馈的识别确认信号之后，所述充电管理单元通过所述正数据线和负数据线中的任意一根数据线，或者通过所述正数据线和负数据线两根数据线将充电控制信息传输给所述快速充电器。
  12. 一种充电器，包括：
    充电管理单元，设置为识别插入充电器USB接口的终端是否为与之匹配的快速充电终端；
    控制开关，设置为当所述充电管理单元识别到插入所述充电器USB接口的终端为与之匹配的快速充电终端时，将所述正数据线或负数据线中的至少一根连接到所述电源线；
    电源输出单元，设置为当所述控制开关将所述正数据线或负数据线中的至少一根连接到所述电源线之后，将通过所述电源线以及所述正数据线和/或负数据线输入到所述终端的电源电压转换为终端电池的充电电压，为终端电池执行充电操作。
  13. 根据权利要求12所述的充电器，其特征在于，所述充电管理单元识别插入所述充电器USB接口的终端是否为与之匹配的快速充电终端包括：
    当检测到所述终端插入所述充电器USB接口时，执行快速充电识别准备操作；其中，所述快速充电识别准备操作包括：控制所述控制开关将所述正 数据线和负数据线连接至所述充电管理单元；
    当接收到所述终端发来的充电器识别确认命令时，确定插入所述充电器USB接口的终端为与之匹配的快速充电终端，并返回识别确认信号给所述终端；
    当在预设时间阈值内未接收到所述终端发来的充电器识别确认命令时，确定插入所述充电器USB接口的终端不是与之匹配的快速充电终端，控制所述控制开关将所述正数据线和负数据线连接至预设模式，使所述充电器在该预设模式下为插入所述充电器USB接口的终端充电。
  14. 根据权利要求12所述的充电器，所述充电管理单元还设置为：
    在所述控制开关将所述正数据线或负数据线中的一根连接到所述电源线之后，所述电源输出单元执行充电操作的过程中，所述充电管理单元通过所述正数据线或负数据线中的未连接所述电源线的一根来接收所述终端传来的充电控制信息；或者，
    在所述控制开关将所述正数据线和负数据线均连接到所述电源线之前，所述充电管理单元发送所述识别确认信号给所述终端之后，所述充电管理单元通过所述正数据线和负数据线中的任意一根数据线，或者通过所述正数据线和负数据线两根数据线接收所述终端传来的充电控制信息。
  15. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现权利要求1至4任意一项所述的充电方法，以及权利要求5至7任意一项所述的充电方法。
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